/**
 * 基于layui的tree重写
 * author: hsianglee
 * 最近修改时间: 2018/09/26
 */
layui.define(["jquery", "laytpl", "layer", "form"], function (exports) {
    var $ = layui.jquery;
    var laytpl = layui.laytpl;
    var layer = layui.layer;
    var form = layui.form;

    function Class(option) {
        this.option = option;     // 获取传入的数据
        this.indent = this.option.indent ? this.option.indent : 18;
        this.elem = "";
        this.data = [];
        this.showCheckbox = this.option.showCheckbox;
        this.drag = this.option.drag;
        this.accordion = this.option.accordion;
        this.contextmenuList = [];
        this.node = "";               // 生成树的dom字符串
        this.checkedData = [];        // 被选中的数据
        this.prevClickEle;          // 记录上次点击的dom
        this.treeMenu = "";           // 右键菜单字符串
        this.filter = "";
        this.render();
    }

    Class.prototype = {
        constructor: Class,
        // 初始化参数数据
        render: function () {
            var self = this;
            self.option.elem ? (function () {
                self.elem = self.option.elem;
            })() : (function () {
                throw "缺少elem节点选择器";
            })();
            self.contextmenuList = self.option.contextmenuList ? self.option.contextmenuList : [];
            self.filter = $(self.elem).attr("lay-filter");
            // 判断data参数
            if (self.option.data) {
                self.data = self.option.data;
                self.init();
                return;
            }
            // 判断url参数
            if (self.option.url) {
                $.ajax({
                    url: self.option.url,
                    type: self.option.type ? self.option.type : "get",
                    data: self.option.where ? self.option.where : {},
                    dataType: "json",
                    success: function (data) {
                        if (data.code === 0) {
                            if (data.data.length <= 0) {
                                layer.alert("没有数据", {icon: 2})
                            }
                            self.data = data.data;
                            self.init();
                            return;
                        }
                        layer.alert(data.msg, {title: "获取数据失败", icon: 2});
                    }
                });
                return;
            }
            throw "选择器" + self.elem + "缺少data或url参数";
        },
        // 初始化容器和标签
        init: function () {
            var self = this;
            this.node = "";
            $(this.elem).empty();
            $(this.elem).off();
            this.nodeInit(self.data, 0, false);
            $(this.elem).html(this.node);
            this.checkboxEvent();
            // 更新选中的数据
            this.getCheckedData();
            this.drag && this.nodeDrag();
            this.eleTreeEvent();
            this.contextmenuList.length && this.contextmenuList.length > 0 && this.rightClickMenu();
            this.checkInit();
        },
        // dom生成
        nodeInit: function (arr, count, spread) {
            // count: 第几层
            // spread: 是否不展开
            var self = this;
            var a = [];
            arr.forEach(function (val, index) {
                var b = ['<div class="eleTree-node ', spread ? 'eleTree-hide' : "", '" eleTree-floor="' + count + '">'
                    , '<div class="eleTree-node-content" style="padding-left:' + self.indent * count + 'px;">'
                    , '<span class="eleTree-node-content-icon">'
                    // 判断叶子节点
                    , (function () {
                        /*
                        if (val.children && val.children.length > 0) {
                            var s = '<i class="layui-icon layui-icon-triangle-r ';
                            if (val.spread) {
                                s += 'icon-rotate';
                            }
                            s += ' "></i>'
                            return s;
                        } else {
                            return '<i class="layui-icon layui-icon-triangle-r" style="color: transparent;"></i>'
                        }
                        */
                        var s = '<i class="layui-icon layui-flag ';
                        if (val.icon) {
                            s += val.icon;
                            s += '" style="color: inherit;';
                        } else {
                            s += 'layui-icon-triangle-r';
                            if (!(val.children && val.children.length > 0)) {
                                s += '" style="color: transparent;';
                            }
                        }
                        s += '"></i>';
                        return s;
                    })()
                    , '</span>'
                    // 判断是否启用checkbox
                    , (function () {
                        var s = '';
                        if (self.showCheckbox) {
                            s += '<input type="checkbox" name="eleTree-node"';
                            if (val.checked) {
                                s += ' eleTree-status="1" checked ';
                            } else {
                                s += ' eleTree-status="0"';
                            }
                            s += 'class="eleTree-hideen ';
                            if (val.disabled) {
                                s += 'eleTree-disabled';
                            }
                            s += '" >';
                        }
                        return s;
                    })()
                    , '<span class="eleTree-node-content-label">' + val.label + '</span>'
                    , '</div>'
                    , '<div class="eleTree-node-group">'
                    , (function () {
                        if (val.children && val.children.length > 0) {
                            return self.nodeInit(val.children, count + 1, !val.spread);     // 获取已经遍历完的子节点
                        }
                    })()
                    , '</div>'
                    , '</div>'];
                a = a.concat(b);
            }, this);
            this.node = a.join("");
            return this.node;   // 返回已经遍历完的子节点
        },
        // 手风琴效果
        accordionFn: function (ele, d) {
            if (!this.accordion) return;
            // 手风琴
            var parentSibling = ele.parent(".eleTree-node").siblings(".eleTree-node");
            parentSibling.children(".eleTree-node-group").children().slideUp("fast");
            // parentSibling.children(".eleTree-node-content").find(".layui-icon-triangle-r").removeClass("icon-rotate");
            parentSibling.children(".eleTree-node-content").find(".layui-flag").removeClass("icon-rotate");
            var parentData = d.parentData;
            // 最外层判断
            if (d.index.length === 1) {
                this.data.forEach(function (val, index) {
                    if (index !== parentData.childIndex) {
                        delete val.spread;
                    }
                })
            } else {
                parentData.data.children.forEach(function (val, index) {
                    if (index !== parentData.childIndex) {
                        delete val.spread;
                    }
                })
            }
        },
        // 展开合并动画
        eleTreeEvent: function () {
            var self = this;
            // 展开树节点的事件在这里
            $(this.elem).on("click", ".eleTree-node-content", function (e) {
                e.stopPropagation();
                // 添加active背景
                if (self.prevClickEle) self.prevClickEle.removeClass("eleTree-node-content-active");
                $(this).addClass("eleTree-node-content-active");
                // 获取点击所在数据
                var node = $(this).parent(".eleTree-node ");
                var data = self.reInitData(node);
                var d = data.currentData;
                // 切换下拉
                // var el = $(this).find(".layui-icon-triangle-r");
                var el = $(this).find(".layui-flag");
                if (el.hasClass("icon-rotate")) {
                    $(this).siblings(".eleTree-node-group").children().slideUp("fast");
                    el.removeClass("icon-rotate");
                    if (el.hasClass("layui-icon-triangle-r") && d.children.length > 0) {
                        el.css("transform", "none");
                    }
                    // 数据修改
                    delete d.spread;
                } else {
                    $(this).siblings(".eleTree-node-group").children().slideDown("fast");
                    el.addClass("icon-rotate");
                    if (el.hasClass("layui-icon-triangle-r") && d.children.length > 0) {
                        el.css("transform", "rotate(90deg)");
                    }
                    // 数据修改
                    d.spread = true;
                    self.accordionFn($(this), data);
                }
                self.prevClickEle = $(this);
                // 数据返回
                layui.event.call(this, "eleTree", 'toggleSlide(' + self.filter + ')', {
                    data: self.data
                    , currentData: d
                });
                $("#tree-menu").hide().remove();
            });
            $(document).on("click", function () {
                $("#tree-menu").hide().remove();
            });
        },
        // 右键菜单
        rightClickMenu: function () {
            var self = this;
            var menuStr = ['<ul id="tree-menu" lay-filter="treeMenu">'
                , $.inArray("copy", this.contextmenuList) !== -1 ? '<li class="copy"><a href="javascript:;">复制</a></li>' : ''
                , $.inArray("add", this.contextmenuList) !== -1 ? '<li class="add"><a href="javascript:;">新增</a></li>' : ''
                , $.inArray("edit", this.contextmenuList) !== -1 ? '<li class="edit"><a href="javascript:;">修改</a></li>' : ''
                , $.inArray("remove", this.contextmenuList) !== -1 ? '<li class="remove"><a href="javascript:;">删除</a></li>' : ''
                , '</ul>'].join("");
            this.treeMenu = $(menuStr);
            $(this.elem).on("contextmenu", ".eleTree-node-content", function (e) {
                var _self = this;
                e.stopPropagation();
                e.preventDefault();
                // 添加active背景
                if (self.prevClickEle) self.prevClickEle.removeClass("eleTree-node-content-active");
                $(this).addClass("eleTree-node-content-active");
                // 菜单位置
                $(self.elem).after(self.treeMenu);
                $("#tree-menu").css({
                    left: event.pageX,
                    top: event.pageY,
                }).show();
                // 复制
                $("#tree-menu li.copy").off().on("click", function () {
                    var el = $(_self).children(".eleTree-node-content-label").get(0);
                    var selection = window.getSelection();
                    var range = document.createRange();
                    range.selectNodeContents(el);
                    selection.removeAllRanges();
                    selection.addRange(range);
                    document.execCommand('Copy', 'false', null);
                    selection.removeAllRanges();
                });
                // 新增
                $("#tree-menu li.add").off().on("click", function () {
                    layer.prompt({title: "请输入label值"}, function (value, index, elem) {
                        // 判断当前是否选中，若选中，则新增的子元素也应该选中
                        var isChecked = $(_self).children(".eleTree-hideen").attr("eletree-status") === "1";
                        // 数据修改
                        var node = $(_self).parent(".eleTree-node ");
                        var data = self.reInitData(node);
                        var d = data.currentData;
                        d.children ? "" : d.children = [];
                        var obj = {
                            label: value,
                        };
                        isChecked ? obj.checked = true : "";
                        d.children.push(obj);
                        d.spread = true;
                        self.accordionFn($(_self), data);
                        // 数据返回
                        layui.event.call(_self, "eleTree", 'add(' + self.filter + ')', {
                            value: value
                            , data: self.data
                            , currentData: d
                        });
                        // dom修改
                        var floor = Number($(_self).parent(".eleTree-node").attr("eletree-floor")) + 1;
                        var isLeaf = $(_self).siblings(".eleTree-node-group").children(".eleTree-node").length === 0;
                        isLeaf && $(_self).children(".eleTree-node-content-icon").children("i").css("color", "#c0c4cc").addClass("icon-rotate");
                        var s = ['<div class="eleTree-node" eleTree-floor="' + floor + '">'
                            , '<div class="eleTree-node-content" style="padding-left: ' + self.indent * floor + 'px;">'
                            , '<span class="eleTree-node-content-icon">'
                            , '<i class="layui-icon layui-flag layui-icon-triangle-r" style="color: transparent;"></i>'
                            , '</span>'
                            // 判断是否启用checkbox
                            , (function () {
                                var s = "";
                                if (self.showCheckbox) {
                                    s += '<input type="checkbox" name="eleTree-node" class="eleTree-hideen"';
                                    s += isChecked ? ' eleTree-status="1"' : ' eleTree-status="0"';
                                    s += '>'
                                }
                                return s;
                            })()
                            , '<span class="eleTree-node-content-label">' + value + '</span>'
                            , '</div>'
                            , '<div class="eleTree-node-group">'
                            , '</div>'
                            , '</div>'].join("");
                        $(_self).siblings(".eleTree-node-group").append(s);
                        // checkbox解析
                        var inp = $(_self).siblings(".eleTree-node-group").children(".eleTree-node:last").children(".eleTree-node-content").children("input.eleTree-hideen[type=checkbox]");
                        var checkStr = ['<div class="eleTree-checkbox '
                            , isChecked ? 'eleTree-checkbox-checked' : ''
                            , '"><i class="layui-icon '
                            , isChecked ? 'layui-icon-ok' : ''
                            , '"></i></div>'].join("");
                        inp.after(checkStr);
                        layer.close(index);
                    });
                });
                // 编辑
                $("#tree-menu li.edit").off().on("click", function () {
                    layer.prompt({
                        value: $(_self).children(".eleTree-node-content-label").text(),
                        title: '请输入修改的label值',
                    }, function (value, index, elem) {
                        // 数据修改
                        var node = $(_self).parent(".eleTree-node ");
                        var d = self.reInitData(node).currentData;
                        d.label = value;
                        // 数据返回
                        layui.event.call(_self, "eleTree", 'edit(' + self.filter + ')', {
                            value: value
                            , data: self.data
                            , currentData: d
                        });
                        // dom修改
                        $(_self).children(".eleTree-node-content-label").text(value);
                        layer.close(index);
                    });
                });
                // 删除
                $("#tree-menu li.remove").off().on("click", function () {
                    // 数据删除
                    var node = $(_self).parent(".eleTree-node ");
                    var data = self.reInitData(node);
                    var d = data.parentData.data;
                    var arr = data.index;
                    // 最外层判断
                    if (arr.length === 1) {
                        self.data.splice(arr[arr.length - 1], 1);
                    } else {
                        if (d["children"]) {
                            d["children"].splice(arr[arr.length - 1], 1);
                            d["children"].length === 0 && delete d["children"];
                        }
                    }
                    // 数据返回
                    layui.event.call(_self, "eleTree", 'remove(' + self.filter + ')', {
                        data: self.data
                        , parentData: d
                        , deleteData: data.currentData
                    });
                    // dom删除
                    var tem = $(_self).parent(".eleTree-node").parent(".eleTree-node-group");
                    $(_self).parent(".eleTree-node").remove();
                    var isLeaf = tem.children(".eleTree-node").length === 0;
                    isLeaf && tem.siblings(".eleTree-node-content").children(".eleTree-node-content-icon").children("i").css("color", "transparent").removeClass("icon-rotate");
                });
                self.prevClickEle = $(this);
            })
        },
        // 自定义checkbox解析
        checkboxRender: function () {
            $(this.elem).find(this.elem + " .eleTree-checkbox").remove();
            $(this.elem + " input.eleTree-hideen[type=checkbox]").each(function (index, item) {
                if ($(item).hasClass("eleTree-disabled")) {
                    $(item).after('<div class="eleTree-checkbox eleTree-checkbox-disabled"><i class="layui-icon"></i></div>');
                } else {
                    $(item).after('<div class="eleTree-checkbox"><i class="layui-icon"></i></div>');
                }
            })
        },
        // 通过子孙选中祖父（递归）
        selectParents: function (inp, eleNode, siblingNode) {
            // inp: 实际input(dom元素)
            // eleNode: input父层类（.eleTree-node）
            // siblingNode: 父层同级兄弟
            while (Number(eleNode.attr("eletree-floor")) !== 0) {
                // 同级input状态存入数组
                var arr = [];
                arr.push($(inp).attr("eleTree-status"));
                siblingNode.each(function (index, item) {
                    var siblingIsChecked = $(item).children(".eleTree-node-content").children("input[name='eleTree-node']").attr("eleTree-status");
                    arr.push(siblingIsChecked);
                });
                // 父元素的实际input
                var parentInput = eleNode.parent(".eleTree-node-group").siblings(".eleTree-node-content").children("input[name='eleTree-node']");
                // 父元素的checkbox替代
                var parentCheckbox = parentInput.siblings(".eleTree-checkbox");
                // 父元素的icon
                var parentIcon = parentCheckbox.children("i");
                if (arr.every(function (val) {
                    return val === "1";
                })) {
                    // 子都选中则选中父
                    parentInput.prop("checked", "checked").attr("eleTree-status", "1");
                    parentCheckbox.addClass("eleTree-checkbox-checked");
                    parentIcon.addClass("layui-icon-ok").removeClass("eleTree-checkbox-line");
                }
                if (arr.some(function (val) {
                    return val === "0" || val === "2";
                })) {
                    // 子有一个未选中则checkbox第三种状态
                    // parentInput.prop("checked","checked");
                    parentInput.attr("eleTree-status", "2");
                    parentCheckbox.addClass("eleTree-checkbox-checked");
                    parentIcon.removeClass("layui-icon-ok").addClass("eleTree-checkbox-line");
                }
                if (arr.every(function (val) {
                    return val === "0";
                })) {
                    // 子全部未选中则取消父选中(并且取消第三种状态)
                    parentInput.removeAttr("checked");
                    parentInput.attr("eleTree-status", "0");
                    parentCheckbox.removeClass("eleTree-checkbox-checked");
                    parentIcon.removeClass("layui-icon-ok eleTree-checkbox-line");
                }
                var parentNode = eleNode.parents("[eletree-floor='" + (Number(eleNode.attr("eletree-floor")) - 1) + "']");
                var parentCheckbox = parentNode.children(".eleTree-node-content").children("input[name='eleTree-node']").get(0);
                var parentSiblingNode = parentNode.siblings(".eleTree-node");
                eleNode = parentNode;
                inp = parentCheckbox;
                siblingNode = parentSiblingNode;
            }
        },
        // checkbox添加选中事件
        checkboxEvent: function () {
            var self = this;
            this.checkboxRender();
            // input添加属性eleTree-status：即input的三种状态，"0":未选中，"1":选中，"2":子孙部分选中
            $(this.elem).on("click", ".eleTree-checkbox", function (e) {
                e.stopPropagation();
                if ($(this).hasClass("eleTree-checkbox-disabled")) return;
                // 获取点击所在数据
                var node = $(this).parent(".eleTree-node-content").parent(".eleTree-node ");
                var d = self.reInitData(node).currentData;
                // 实际的input
                var inp = $(this).siblings(".eleTree-hideen").get(0);
                if (inp.checked) {
                    $(inp).removeAttr("checked").attr("eleTree-status", "0");
                    $(this).removeClass("eleTree-checkbox-checked");
                    $(this).children("i").removeClass("layui-icon-ok eleTree-checkbox-line");
                    // 数据更新
                    delete d.checked;
                } else {
                    $(inp).prop("checked", "checked").attr("eleTree-status", "1");
                    $(this).addClass("eleTree-checkbox-checked");
                    $(this).children("i").addClass("layui-icon-ok").removeClass("eleTree-checkbox-line");
                    d.checked = true;
                }
                var childNode = $(inp).parent(".eleTree-node-content").siblings(".eleTree-node-group").find("input[name='eleTree-node']");
                // 点击祖父层选中子孙层
                inp.checked ? (function () {
                    childNode.prop("checked", "checked").attr("eleTree-status", "1");
                    childNode.siblings(".eleTree-checkbox").addClass("eleTree-checkbox-checked");
                    childNode.siblings(".eleTree-checkbox").children("i").addClass("layui-icon-ok").removeClass("eleTree-checkbox-line");
                })() : (function () {
                    childNode.removeAttr("checked");
                    childNode.attr("eleTree-status", "0");
                    childNode.siblings(".eleTree-checkbox").removeClass("eleTree-checkbox-checked");
                    childNode.siblings(".eleTree-checkbox").children("i").removeClass("layui-icon-ok eleTree-checkbox-line");
                })();
                var eleNode = $(inp).parent(".eleTree-node-content").parent(".eleTree-node");
                var siblingNode = eleNode.siblings(".eleTree-node");
                // 点击子孙层选中祖父层(递归)
                self.selectParents(inp, eleNode, siblingNode);
                // 更新选中的数据
                self.getCheckedData();

                // 数据返回
                layui.event.call(inp, "eleTree", 'checkbox(' + self.filter + ')', {
                    data: self.data
                    , checkedData: self.checkedData
                    , currentData: d
                });
            })
        },
        // 拖拽
        nodeDrag: function () {
            var self = this;
            $(this.elem).on("mousedown", ".eleTree-node-content", function (e) {
                var _self = this;
                var time = 0;
                e.stopPropagation();
                $(self.elem).css("user-select", "none");
                var node = $(this).parent(".eleTree-node ");
                var cloneNode = node.clone(true);
                var temNode = node.clone(true);
                var x = e.clientX - $(self.elem).offset().left;
                var y = e.clientY - $(self.elem).offset().top;
                $(self.elem).append(cloneNode);
                cloneNode.css({
                    "display": "none",
                    "position": "absolute",
                    "background-color": "#f5f5f5",
                    "width": "100%"
                });
                $("#tree-menu").hide().remove();
                $(document.body).on("mousemove", function (e) {
                    // t为了区别click事件
                    time++;
                    if (time > 2) {
                        var xx = e.clientX - $(self.elem).offset().left + 10;
                        var yy = e.clientY - $(self.elem).offset().top - 5;
                        cloneNode.css({
                            display: "block",
                            left: xx + "px",
                            top: yy + "px"
                        })
                    }
                }).on("mouseup", function (e) {
                    // dom更改
                    var groupNode = node.parent(".eleTree-node-group");
                    cloneNode.remove();
                    $(self.elem).css("user-select", "auto");
                    $(document.body).off("mousemove").off("mouseup");
                    var target = $(e.target);
                    // 数据更改
                    var dataReset = function (len, childIndex, t) {
                        // 删除数据
                        var d = self.reInitData(node);
                        var parentData = d.parentData.data;
                        var temData = d.currentData;
                        var i = d.parentData.childIndex;
                        if (len === 0) {
                            // 判断目标是否超出范围
                            return false;
                        }
                        // 判断当前是否是最外层
                        if (d.index.length === 1) {
                            self.data.splice(d.index[0], 1);
                        } else {
                            parentData.children.splice(i, 1);
                            parentData.children.length === 0 && delete parentData.children;
                        }
                        // 如果是同级的，并且从上面的移动到下面，则index减一
                        var f1 = Number(node.attr("eletree-floor")) - 1;
                        var f2 = Number(node.attr("eletree-floor")) - 1;
                        if (i < childIndex && node.parents(".eleTree-node[eletree-floor='" + f1 + "']").get(0).isEqualNode(t.parents(".eleTree-node[eletree-floor='" + f2 + "']").get(0))) {
                            childIndex = childIndex - 1;
                        }
                        return {
                            temData: temData,
                            childIndex: childIndex
                        };
                    };
                    // 判断是否是同一个dom树
                    var isOwnTarget = target.parents(".eleTree").length === 0 ? target.get(0) : target.parents(".eleTree").get(0);
                    if (!(isOwnTarget.isEqualNode($(self.elem + ".eleTree").get(0)))) {
                        return;
                    }
                    // 判断目标是否是最外层
                    if (target.get(0).isEqualNode($(self.elem + ".eleTree").get(0))) {
                        var dataRe = dataReset();
                        var d = dataRe.temData;
                        self.data.push(d);
                        node.remove();
                        // 添加节点
                        $(self.elem + ".eleTree").append(temNode);
                        // 改floor
                        temNode.attr("eletree-floor", "0");
                        // 加padding
                        temNode.children(".eleTree-node-content").css("padding-left", "0px");
                        // 原dom去三角
                        var leaf = groupNode.children(".eleTree-node").length === 0;
                        leaf && groupNode.siblings(".eleTree-node-content")
                            .children(".eleTree-node-content-icon").children(".layui-icon-triangle-r")
                            .removeClass("icon-rotate").css("color", "transparent");
                        // 数据返回
                        if (time > 2) {
                            layui.event.call(_self, "eleTree", 'drag(' + self.filter + ')', {
                                data: self.data
                                , currentData: d
                            });
                            eleTree.reload(self.elem, {data: self.data});
                        }
                        return;
                    }
                    // 判断是否不是同一个dom节点或者是其子节点（父节点不能放到子节点）
                    var t = target;
                    if (!target.hasClass("eleTree-node-content")) {
                        t = target.parents(".eleTree-node-content");
                    }
                    var f = Number(node.attr("eletree-floor"));
                    var isNotParentsNode = node.get(0).isEqualNode(t.parents("[eletree-floor='" + f + "']").get(0));
                    if (!isNotParentsNode) {
                        var d = self.reInitData(t.parent(".eleTree-node"));
                        var i = d.parentData.childIndex;
                        var dataRe = dataReset(d.index.length, i, t);
                        var temData = dataRe.temData;
                        i = dataRe.childIndex;
                        // 判断目标是否超出范围
                        if (temData) {
                            node.remove();
                            // 添加之前先删dom
                            var parentData = d.parentData.data;
                            if (d.index.length === 1) {
                                parentData.children ? parentData.children.push(temData) : parentData.children = [temData];
                            } else {
                                parentData.children[i].children ? parentData.children[i].children.push(temData) : parentData.children[i].children = [temData];
                            }
                            // 添加节点
                            target.siblings(".eleTree-node-group").append(temNode);
                            // 改floor
                            var floor = Number(target.parent(".eleTree-node").attr("eletree-floor")) + 1;
                            temNode.attr("eletree-floor", String(floor));
                            // 加padding
                            temNode.children(".eleTree-node-content").css("padding-left", floor * self.indent + "px");
                            // 加三角
                            target.children(".eleTree-node-content-icon").children(".layui-icon-triangle-r")
                                .addClass("icon-rotate").css("color", "#c0c4cc");
                            // 原dom去三角
                            var leaf = groupNode.children(".eleTree-node").length === 0;
                            leaf && groupNode.siblings(".eleTree-node-content")
                                .children(".eleTree-node-content-icon").children(".layui-icon-triangle-r")
                                .removeClass("icon-rotate").css("color", "transparent");
                            // 数据返回
                            if (time > 2) {
                                layui.event.call(_self, "eleTree", 'drag(' + self.filter + ')', {
                                    data: self.data
                                    , currentData: temData
                                    , targetData: d.currentData
                                });
                                eleTree.reload(self.elem, {data: self.data});
                            }
                        }
                    }
                });
            });
        },
        // 初始化checkbox选中状态
        checkInit: function (arr, floor) {
            var self = this;
            $(self.elem + " input[eleTree-status='1']").each(function (index, item) {
                var checkboxEl = $(item).siblings(".eleTree-checkbox");
                var childNode = checkboxEl.parent(".eleTree-node-content").siblings(".eleTree-node-group").find("input[name='eleTree-node']");
                // 选择当前
                checkboxEl.addClass("eleTree-checkbox-checked");
                checkboxEl.children("i").addClass("layui-icon-ok").removeClass("eleTree-checkbox-line");
                // 选择子孙
                childNode.prop("checked", "checked").attr("eleTree-status", "1");
                childNode.siblings(".eleTree-checkbox").addClass("eleTree-checkbox-checked");
                childNode.siblings(".eleTree-checkbox").children("i").addClass("layui-icon-ok").removeClass("eleTree-checkbox-line");
                // 选择祖父
                var eleNode = checkboxEl.parent(".eleTree-node-content").parent(".eleTree-node");
                var siblingNode = eleNode.siblings(".eleTree-node");
                self.selectParents(item, eleNode, siblingNode);
            })
        },
        // 获取选中的数据
        getCheckedData: function () {
            this.checkedData = [];
            var self = this;
            $(this.elem + " input[eletree-status='1']").each(function (index, item) {
                var node = $(item).parent(".eleTree-node-content").parent(".eleTree-node ");
                var d = self.reInitData(node).currentData;
                self.checkedData.push(d);
            });
            return this.checkedData
        },
        // 通过dom节点找对应数据
        reInitData: function (node) {
            var i = node.index();
            var floor = Number(node.attr("eletree-floor"));
            var arr = [];     // 节点对应的index
            while (floor >= 0) {
                arr.push(i);
                floor = floor - 1;
                node = node.parents("[eletree-floor='" + floor + "']");
                i = node.index();
            }
            arr = arr.reverse();
            var oData = this.data;
            // 当前节点的父节点数据
            var parentData = oData[arr[0]];
            // 当前节点的data数据
            var d = oData[arr[0]];
            for (var i = 1; i < arr.length; i++) {
                d = d["children"] ? d["children"][arr[i]] : d;
            }
            for (var i = 1; i < arr.length - 1; i++) {
                parentData = parentData["children"] ? parentData["children"][arr[i]] : parentData;
            }
            return {
                currentData: d,
                parentData: {
                    data: parentData,
                    childIndex: arr[arr.length - 1]
                },
                index: arr
            }
        },
    };

    var thisEleTree = function () {
        thisEleTree.o[this.elem] = this;
        thisEleTree.config[this.elem] = this.option;
        thisEleTree.getCheckedData[this.elem] = this.getCheckedData;
    };
    // 保存当前对象(为了获取选中元素时改变this指向)
    thisEleTree.o = {};
    // 保存对象的option
    thisEleTree.config = {};
    // 获取选中的元素
    thisEleTree.getCheckedData = {};
    var eleTree = {
        checkedData(elem, flag) {
            if (flag) {
                return thisEleTree.o[elem].data;
            }
            return thisEleTree.getCheckedData[elem].call(thisEleTree.o[elem]);
        },
        render: function (option) {
            var inst = new Class(option);
            thisEleTree.call(inst);
        },
        on: function (events, callback) {
            return layui.onevent.call(this, "eleTree", events, callback);
        },
        reload: function (elem, option) {
            var config = thisEleTree.config[elem];
            this.render($.extend({}, config, option));
        }
    };
    exports('eleTree', eleTree);
});